Additional links
Part description on:
Tile, Round 2 x 2 with Bottom Stud Holder with Dark Bluish Gray S.H.I.E.L.D. Eagle on Bright Light Blue Background Pattern (Sticker) - Set 76042
Bricklink ID:14769pb157
Weight:0.330 g

Sets with this part (from Bricklink)
  Part color Dark Bluish Gray

 Set nameRelease yearQuantity
7604276042 The SHIELD Helicarrier20151